Why would anyone go left in that tree? Not worth the time to craft or use.
Glass Armor is too high level for the pace i make new characters. Thus i had to craft one. Glass armor and weapons are very sexy looking. Hell, glass sword is the best looking sword in the whole game (the best looking sword in Morrowind and Oblivion is glass sword as well).
Steel Plate armor is very nice looking. Orcish armor is horrible (and Orcish weapons are useless and ugly) and Dwarven one is not that great either. Ebony... meh in this game. Ebony Mail is good. Daedric armor is not my style really. Daedric weapons are useful but as i noted, i never get high enough level to really need them. Flawless Glass sword by level 20 is more than adequate.
But if you're min-maxer or something like that, the light path is really bad really. The whole smithing tree is badly made if you ask me.
Should have had 3 paths: Light, Heavy and Weapons, with Dragon Smithing at top of each paths. The first perk would've been "Basic Improvement" (Iron and Fur/Hide), and this would branch to "light path", "heavy path", "weapons path" and Arcane Blacksmith.
Light path would start with Leather armor, heavy with steel, and weapons with steel weapons.
Light Armor: Leather, Elven, Scale, [something that doesn't exist ATM], Glass, Dragon.
Elven, Dwemer or Dwemer weapons (one needed) could enable Imperial armor and weapons and improving it, dead-end.
Heavy Armor: Steel, Dwemer, Plate, Orcish, Ebony, Daedric, Dragon.
Weapons: Steel, Orcish, Dwemer, Ebony, Glass, Daedric, Dragon (why Dragon weapons don't exist?).
The issue with this is, of course, that this would require a lot of perks. But of course you wouldn't make both Light and Heavy armor? And one possiblity could be to make Glass, Daedric and Dragon weapons to branch from Ebony, each having it's own pros and cons This would reduce the required perks to 11-12 or 13 if one would take Imperial perk as well.
Imperial could be alteranatively "Faction" armor and weapons and would offer all faction items, also enabling making "advanced" versions of them. Glass Stormcloak cuirass, Daedric Imperial Armor et cetera.
This game should've had additional light armor... Mithril or mail perhaps?
EDIT that ended up being far longer than i thought. And i have another long post underway.